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Current Diabetes Reviews

Volume 8 Issue 5
ISSN: 1573-3998
eISSN: 1875-6417

 

   All Titles

  Lipid Composition of Cell Membranes and Its Relevance in Type 2 Diabetes Mellitus
  pp.390-400 (11) Author: Rob N.M. Weijers
 
 
      Abstract

Identifying the causative relationship between the fatty acid composition of cell membranes and type 2 diabetes mellitus fundamentally contributes to the understanding of the basic pathophysiological mechanisms of the disease. Important outcomes of the reviewed studies appear to support the hypotheses that the flexibility of a membrane determined by the ratio of (poly)unsaturated to saturated fatty acyl chains of its phospholipids influences the effectiveness of glucose transport by insulin-independent glucose transporters (GLUTs) and the insulin-dependent GLUT4, and from the prediabetic stage on a shift from unsaturated towards saturated fatty acyl chains of membrane phospholipids directly induces a decrease in glucose effectiveness and insulin sensitivity. In addition, it has become evident that a concomitant increase in stiffness of both plasma and erythrocyte membranes may decrease the microcirculatory flow, leading ultimately to tissue hypoxia, insufficient tissue nutrition, and diabetes-specific microvascular pathology. As to the etiology of type 2 diabetes mellitus, a revised hypothesis that attempts to accommodate the reviewed findings is presented.

 
  Keywords: Cell Membranes, Erythrocyte Deformability, Glucose Effectiveness, Glucose Transporter, Insulin Sensitivity, Phospholipids, Type 2 Diabetes Mellitus, Unsaturated Fatty Acid, insulin-dependent GLUT4, fatty acid
  Affiliation: Onze Lieve Vrouwe Gasthuis, Oosterparkstraat 9, PO Box 95500, 1090 HM Amsterdam, The Netherlands.
 
  Key: New Content Free Content Open Access Plus Subscribed Content

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